Lubricating system for internal combustion engines



LUBRICATING SYSTEM FOR INTERNAL coMBUsTIoN ENGINES B. N. PIERCE June 27, 1933.

Filed July 23, 1951 I WW Gttorueg Patented June 27, 1933 "UNITED .STATES PATENT OFFICE BURT N. 1 IER0E,OI` NEW YORK, N. Y.. AssIGNoR To -EMEROL MANUFACTURING oo., OE

NEW YORK, N. Y.,` 'A CORIORATION OE ILLINOIS IJUBRIOATING lsvYsTENL EOR INTERNAL coMBUsTION ENGINES 'Application medA July e3,

This invention relates to certain new and Y useful improvement-sin lubricating systems for internal combustion engines as disclosed inthe applicationfiiled by Vernon W. Thompson and Burt N. Pierce, December 8,1930, `Serial Number '500,928 and is a companion application of an application tiled even date herewith, the Object'being to provide a novel form of housing formed of three sections which can be` readily assembled so as toproperlyjpo'sition the diaphragm.

' Another object of my invention is to provide novel means for securing the various sections of the housing together so that when assembled, spaced chambers will be formed in the housing separated by a diaphragm having an apertured plug in to which is adapted to extend an adjustable needle valve.

Other and furtherobjects and advantages 2o of the invention will be hereinafter set forth and the novel features thereof defined by the appended claims.` j A lnv the drawing, y l Figure 1 is affront elevation of a housing 25 used in connection with a lubricating system as disclosed in a lubricating system relying on the suction of the engine for drawing fuel from a source of supply to the cylinders vof the engine; A,

Figure 2 is a rear elevation; f

Figure 3 Ais a vertical section; Y, -Figure 4 is a vertical section taken yat right angles to that of Figure 8; and

. Figure 5 is a horizontal detail section show- 35 ing the various sections of the housing.

In carrying out my invention I employ a back sectionl with an intermediate section 2 and a front section 3, saidfront-.section being provided with a sight opening 3. The back section isjprovided with an inlet nipple 4 and the intermediate section with an outlet'nipple 5 through which the lubricant is adapted to pass in its passage `from the source of supply to the cylinders of the engine. y

lThe back section is provided with an' annu- 1931. Serial No. 552,727. N

lar .seat 6 in which is arranged a washer 7 against which is arranged a flexible diaphragm 8 having an apertured plug 9 carrying a drip spoon 10 against which the intermediate section 2 is clamped by screws 11 so as to clamp this back and intermediate sections firmly together. j

The intermediatefsection engages a washer 12 carried by the front section and this washer is provided with apertures registering with threaded sockets into which are adapted to extend some of the screws 11 for clamping the three sections together. Some of the screws 11 only pass into threaded sockets formed in the intermediate section 2while in the intermediate section into the threaded sockets 13 formed in the iront section as clearly shown in Figure 5 which allows the back section and intermediate section to be connected together iirst and placed in position within the cup-shaped front section.

The intermediate section carries a pivoted arm 14 provided with a needle valve 15 cooperating with the apertured plug 9, said arm being engaged by a spring 16 which holds the end of said arm into Vengagement withA a cam 17 carried by a shaft 18 slidably and revolubly'inounted'in a `stem 19 carried by the intermediate section, said shaft having a cap 2O carried byits upper end, which cap is preferably yformed hollow and surrounded by a coil spring 21 between the stem 19l and the inner wall ofthe cap in order to hold the cap in extended position. A spring 2 1 engages a washer 22 ydisposed over the end of the stem'19 so as to hold it firmly against the stem to form a liquid tight joint.

The front housing is provided with a notch 23 to receive the outlet nipple 5 and a notch 24 to receive the stern 19, said stem carrying a pointer 25 held in its adjusted position byv said notch 24 and adapted to cooperate with designations vformed on the sleeveof the cap, which designations are arrangedv from 0 to 5 60 other screws pass through apertures formed f CFI so that by turning the cap in either direction the needle 'valve will be adjustedV so as to control the passage of lubricant through the apertured plug of the diaphragm.

In assembling a housing as shown the back o section and intermediate section' are secured together by the screws ll.' The arm 14 is placed in position between the bearingseand the pivot pin'placed in position Within rthe bearings and a lug 26 carried by the front ofV the housing then'extends into the path of travel of said pivotV pin sodas to 'lock it adj ustedl'iosition.iA The spring is then placed iny position and when thev front sectionA of the housing* hos been Plooed imposition and some of the screws forcedinto thesockets 13,

`the free sections will be held tightlytogetherv l to form a lliquidtghtj `joint Lbetween the various partsin order to form two chambers separated ,by a flexible` diaphragm,A which diaphragm is flexed bythe suction of the eneineI so as to; control the p'assageof lubricant f rom the source of supply and in-'its passage f Vfrointlre sourcefof'supply tothe cylinders of lthe engine, it :drops off the spoon l0 in front fof 'thesightopening and the operator can at all'times 'ascertain the ainount of' lubricant being fed tothe cylinder of the engine and lcanl ingrea'seor decrease the supply by adjusting the cam which shifts the position of the nejdl` valvel inrespectto aperturedplus ofthe diaphragm- ""ir'Vhat I claim is i l. In'alubricating'system'for yinternal combustion engines, ay sectional housing 'formed of a back section, an intermediate section and a cup-shaped front sectioma diaphragm secured betweenthe backA section an'd the 'irAltermediatev section having kan aperture through which `lubricantV is adapted to pass frein the source of supply to'thecylinders of the engine, said back, section "being'pro- Yidd Witlr'a'n inlet and the 'intermediate section' with, an outlet, lsaid front section being prbvided Lwith` a sight opening, packings ai'.- ranged between said ,sections` and meanslfor securing said sections together` toform'aJ liquidwall between saidsections. y f2."In a' lubricating system for" internal combustion engines, a sectional lhousing` formedof front section, anv intermediate section' anda ,back section, a diapliragmsef 1cured,betwu'n said back'v section' and inter# mediate section havingan' aperturev through which lubricantis 4adapted to' pass., av pivotefd l arm'c'arrying aneedlevalve mounted within said housing cooperating with thieaperture of said diaphragm, a cam engaging saidl arm, a shaft uponvvhich said. cam is mounted,.a cap rcarried said shaft, a washer surroundingy said shaft anda spring arran edy within said ca en a inosaid "washcrormin fa' b s v liquid tight joint `:around saidshaftl n 3, In'aI lubricating system for'internal combustion engines,a ,sectional housing 'coni-fl Y assembled.

and an intermediate section, a pivoted arm i carrying a needle valve cooperating with the aperture of said diaphragm, said intermediate section being provided with a stem portion, a shaft slidably mounted Ain said stem portion carrying a cam engaging said arln, a

cap carried by said sha/,ft having numerals and apointer comprising sa hub `or`tion surrounding said' stem andadapte Atobc held in its adjusted, position above the notch of Said iront section. when, said. sections. ere

V4. In a lubricating system forinternal combustion engines, 'alsectional housing having va flexible diaphragm provided with an aperture through'ivhich lubricant is adapted to bedtove by the Suction. of the engine, o ,edlevelve .Cooperating with the aperture tfooid dfphiafgm, a' Shaftforyn; a em for adjusting the, posities of sin' needle valve and means fotlndeeting. the Position of said cani i for determining the Vposition of mid. Doodle Valve-Vv i' o! A'lubrioins Svstem for. internal YConobuoltion engines@ 'hoisioshov'g ein inlet ood on outlet and eight feedfooegio flexible diaphragm arrangedin saidhousing having en opel-.tote idantedite be nevedby' che, suaionf the einem needle eine @a operating withY eadlonerbtlire'ehd mfens for. adjusting the positions of needle4 valve. f cJ-"A lubricating SYSoom fol'ilfernl oombuloton, origines@ housing beting' 'n inlet and an weer and a sigh@ feed eparina@ flexible, diaphragm arranged io ,Seid housing' having en, aperture, `adapted toibo mov-ed. by the s u'etien of the enginefaneedle valve-co.- operating with said aperture-,means for adjusting the position of saidy needle valve and means y'for indicating thejposition of said adjusting 'meansl i ,y

7. In a lubricating system vfor internal combustion engines,'a hous'irfgfhaving a Sight feed opening, flexible diaphragm 'mounted in said housing having an aperturfeadapted to be flexed by'tliesiictionof the engine', a

needle velve'e'oope'ro-ifne' with" Seid aperture, meohs 'for' 'odiootrflo lie' ooeifon of "Sfd .needle valve. in respect fo 'seid erortilre 'and moelle for indicating' the Iooetion. of'ead .needle yvalve in respect tb' saidaperture comi i in saidl notch when said sections are assembled. 1

9. In a. lubricating system for internal Combustion engines. a sectional housing having an apertured diaphragmdisposedtherein,

a needle valve cooperating with the aperture BURT Nl. PIERCE. 

